How much boost can the stock engine handle reliably w/ BNR S3?

Discussion in 'Mazdaspeed 3/6 Engine' started by Bobby, Sep 23, 2020.

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  1. Bobby

    Bobby Greenie N00B Member

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    Hey guys currently running 20psi and wanting to turn it up. Just wondering what the safe amount of boost with stock internals is with the BNR S3? Thank you!
     
    Bobby, Sep 23, 2020
    #1
  2. SharksInSpace

    SharksInSpace Planets and shit. Silver Member

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    You'll run out of fuel before you reach the stock block power danger zone. Send it.
     
    SharksInSpace, Sep 23, 2020
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  3. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    Mazda designed and built these motors to make 263 horsepower. Keep it around there and you should be good
     
    Easter Bunny, via a mobile device, Sep 23, 2020
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  4. Al3xRats

    Al3xRats Greenie Member

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    The condition and health of your motor would be a big factor to consider. When I was stock block I had a 93 map and a meth map where boost targets were 21 and 22 psi.


    Sent from my iPhone using Tapatalk
     
    Al3xRats, via a mobile device, Sep 24, 2020
    #4
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